General CommentIt does sound like Claudio (what a beautiful sound it is) but there are people who can synth their voices to sound close to him, and there are people who can sing like him. There's a guy (not saying its him, and he's really good) called Ilan Agir, he does a project called We Operate Man (myspace.com/…) who sounds a HELL of a lot like Claudio. It wouldn't be to hard for a self-obsessed fan with the right voice to pass themselves off with this. If it is, its not Claudio at his best.
Eh-henyways, this is still a great cover, better than the original by far, but I quite like Midtown's vesion.
Nice acoustic work.

General CommentJust because it's not on any track listing doesn't mean that they didn't do it. Coheed have done plenty of covers that aren't listed anywhere but they still did them. It's definitely Claudio and it is amazing.